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Post by SeaRat on Oct 3, 2019 7:17:30 GMT -8
Oh that low profile mask was great. I had the snorkel too. Super cool. Especially that you did my same fix. oops. looked back and you WERE saying something about the limitations.. very cool Anyway the guy is here at this link..just found this link.. www.megccr.com/team-view/leon-scamahorn/So Farallon is definitely in his history. I have both, the mask and the snorkel, and both will be in the water today in the pool. John
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Post by araklea on Oct 3, 2019 8:26:53 GMT -8
Has any one tried the Scubapro Hyperthane fins? Where there any benefits over the Scubapro JetFins? Other than a style change?
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Post by SeaRat on Oct 4, 2019 16:28:16 GMT -8
Has any one tried the Scubapro Hyperthane fins? Where there any benefits over the Scubapro JetFins? Other than a style change? Fin Collection 10-2012 by John Ratliff, on Flickr I think that the photo of the fins you're talking about are on the outside row, approximately the 5:00 position. My Lightning Jet Fins are also in the outside row, about at the 8:00 position of my collection. I did not see any advantage over my Lightning Jet Fins. The blade is smaller in surface area (look at the differences in the photo), and the "vents" actually seem to clos over tome, as the plastic under-Fins seem to close off. So you are left with a pretty resident plastic flat blade which does give good thrust, but not quite up to Lightning Jet Fins. But then again, the really great rubber of the Lightning Jet Fins, at least in my giant size, are really hard to beat, and much better than the originalJet Fins. John
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Post by SeaRat on Oct 8, 2019 17:25:04 GMT -8
John, it's my understanding that Farallon and Tekna were both the ideas/products created/designed by the same guy Ralph... OK someone help me out with the last name! and later/finally became Oceanic... JB EDIT: this is according to Jim Steele at Steele's Scuba: also, if you'll notice all three were/are SF Bay Area companies and to the best of my knowledge the only ones that are dive gear related... Okay, Jaybird, I have found a few references. The name you are looking for is Ralph Osterhout, who formed the Osterhout Design Group. He formed three companies, Machina, S-Tron, and Techna. I see no reference to Farallon though. Here's what happened to his company, Techna: I'll check on Farallon later. John
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Post by SeaRat on Oct 8, 2019 17:44:10 GMT -8
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Post by crabbyjim on Oct 9, 2019 7:11:51 GMT -8
This is a little off topic but the reason I am interested in the Farafin is the bracing system that allows the diver to use the thigh muscles for propulsion. In my old age I get terrible cramps in my calves when diving my modern split fins. Scuba Lawyer brought his Voit Viking full foot fins and dove without incident. Would anyone care to share their thoughts and experience about flippers and cramps? I have tried all the usual remedies to no avail and I suspect that one of my medications may be causing the cramps.
Joh, good luck with your medical procedure.
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Post by nikeajax on Oct 9, 2019 7:37:38 GMT -8
OK John, what about Ralph Malph: Ritchie Cunningham and Potsie Weber thought he was making some kinda dive gear too... JB
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Post by araklea on Oct 9, 2019 14:23:28 GMT -8
This is a little off topic but the reason I am interested in the Farafin is the bracing system that allows the diver to use the thigh muscles for propulsion. In my old age I get terrible cramps in my calves when diving my modern split fins. Scuba Lawyer brought his Voit Viking full foot fins and dove without incident. Would anyone care to share their thoughts and experience about flippers and cramps? I have tried all the usual remedies to no avail and I suspect that one of my medications may be causing the cramps. Joh, good luck with your medical procedure. I had some cramping in my foot at one time. The issue for me was that I had no 'rest' cycle. I was holding the foot tight at all times. The rest refers to a point at which a muscle has no tension. Medication can do some bad stuff, but other that, all I can say is other than having a rest spot in part of your cycle of motion, you should do daily stretches and some kind of daily activity that uses that part of your calf muscle in the same zone of angle. If you use a limb only once a week or month etc, that is an issue. Even just stretching daily may make a big difference. I can also say, be aware of whether you are using a circular motion 'cycle spinning' or a flatter sinusoidal (just up and down) motion. Try switching between the two. Your foot is normally flat at 90 degrees, and in fins we lay that to point toes down. Then you often get a cramp in almost any system with the muscle all 'squenched' up like that. In this case use the muscles every 48 hours add the stretching, this helped me. So I would say, in your bed room morning activity, stand up on your toes 30times every other day, stretch before and after. The stretch is pulling your toes toward your face, or place your toes on a stair-step, and try and relax/release the calf muscle for a count of ten.
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Post by SeaRat on Oct 9, 2019 16:04:45 GMT -8
CJ,
Concerning cramps, there are two things that can contribute, and part of that has to do with where the fin's force is placed on the foot. The old Duck Feet fins, and the USD equivalent Professional Fins, put all this force on the foot's arch. This is why the old Duck Feet were more comfortable on long swims when used upside down.
The patent for the Fara-Fin has something to say about cramps too:
John
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Post by crabbyjim on Oct 9, 2019 18:47:55 GMT -8
I shall pursue shorter fins because I have exhausted all the other remedies except medication. I’ll discuss the medication with the doctor next month.
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Post by scubalawyer on Oct 9, 2019 20:27:30 GMT -8
Hi Jim, just saw your posts. The only fins that really cramp up my legs are the heavy USD and ScubaPro type rocket fins. My Apollo Bio split fins are soft and very comfortable as are my Voit Viking full foot fins. I had a set of Atomic Aquatic split fins a while back and they would cause me cramps on occasions. Lost both on a zero vis dive a few years ago - long story but I surfaced in zero vis from 50 feet sans any fins. Would not recommend. Mark
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Post by SeaRat on Oct 10, 2019 4:40:26 GMT -8
I shall pursue shorter fins because I have exhausted all the other remedies except medication. I’ll discuss the medication with the doctor next month. One other possible remedy is the use of Force Fins. They operate on a very different philosophy, saying that the upstroke does little for propulsion, and the Force Fins therefore "give" during the upstroke. I have been using my set for the last year, with good results. I took the Force Fins to Maui for our snorkeling there last early summer. Force Fin Vortex Creation--flutter kick by John Ratliff, on Flickr Here is the down-stroke, which is the power stroke for the Force Fins. Force Fin Sted Vortex's by John Ratliff, on Flickr Here is the up-stroke, using a modified dolphin kick. John
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Post by crabbyjim on Oct 10, 2019 5:48:06 GMT -8
Force fins have been around for many years but I have never seen anyone use them in Monterey. Do you feel that they would provide sufficient propulsion for a fully equipped, cold water diver?
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Post by nikeajax on Oct 10, 2019 6:36:45 GMT -8
CJ, have you tried a lighter fin, something where the blade isn't so wide? It might just be that your muscles aren't developed enough and they are working too hard for the task... Just a thought. Have you tried something like the Oceanways-Cressi knock off? What size foot do you have? You can have these Nemrods for a song... JB
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Post by SeaRat on Feb 22, 2021 12:10:16 GMT -8
Force fins have been around for many years but I have never seen anyone use them in Monterey. Do you feel that they would provide sufficient propulsion for a fully equipped, cold water diver? CJ, I must have missed this post from over a year ago. Yes, Force Fins do provide hat kind of propulsion, but only on the down kick. So you have to modify how you kick, and emphasize the down kick, to make them effective. John
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